aucahuasi commented on a change in pull request #11159:
URL: https://github.com/apache/arrow/pull/11159#discussion_r708775292
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File path: cpp/src/arrow/compute/kernels/vector_nested.cc
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@@ -169,6 +206,22 @@ void RegisterVectorNested(FunctionRegistry* registry) {
DCHECK_OK(registry->AddFunction(std::move(flatten)));
DCHECK_OK(registry->AddFunction(std::make_shared<ListParentIndicesFunction>()));
+
+ auto list_element = std::make_shared<VectorFunction>("list_element",
Arity::Binary(),
+ &list_element_doc);
+ DCHECK_OK(list_element->AddKernel(
+ {InputType::Array(Type::LIST), InputType::Scalar(Type::INT32)},
+ OutputType(ListValuesType), ListElement<ListType, Int32Type>));
+ DCHECK_OK(list_element->AddKernel(
+ {InputType::Array(Type::LIST), InputType::Scalar(Type::INT64)},
+ OutputType(ListValuesType), ListElement<ListType, Int64Type>));
+ DCHECK_OK(list_element->AddKernel(
+ {InputType::Array(Type::LARGE_LIST), InputType::Scalar(Type::INT32)},
+ OutputType(ListValuesType), ListElement<LargeListType, Int32Type>));
+ DCHECK_OK(list_element->AddKernel(
+ {InputType::Array(Type::LARGE_LIST), InputType::Scalar(Type::INT64)},
+ OutputType(ListValuesType), ListElement<LargeListType, Int64Type>));
+ DCHECK_OK(registry->AddFunction(std::move(list_element)));
Review comment:
Good catch, I'll work on that tomorrow. Thanks @lidavidm
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